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[XEN PATCH 05/15] build: introduce a generic command for gzip
- To: <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Anthony PERARD <anthony.perard@xxxxxxxxxx>
- Date: Tue, 23 May 2023 17:38:01 +0100
- Authentication-results: esa2.hc3370-68.iphmx.com; dkim=none (message not signed) header.i=none
- Cc: Anthony PERARD <anthony.perard@xxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, "Jan Beulich" <jbeulich@xxxxxxxx>, Julien Grall <julien@xxxxxxx>, "Stefano Stabellini" <sstabellini@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>
- Delivery-date: Tue, 23 May 2023 16:38:59 +0000
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Make the gzip command generic and use -9 which wasn't use for
config.gz. (xen.gz does use -9)
Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
---
xen/Rules.mk | 5 +++++
xen/common/Makefile | 8 ++++----
2 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/xen/Rules.mk b/xen/Rules.mk
index 59072ae8df..68b10ca5ef 100644
--- a/xen/Rules.mk
+++ b/xen/Rules.mk
@@ -63,6 +63,11 @@ cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $< $@
quiet_cmd_binfile = BINFILE $@
cmd_binfile = $(SHELL) $(srctree)/tools/binfile $(BINFILE_FLAGS) $@ $(2)
+# gzip
+quiet_cmd_gzip = GZIP $@
+cmd_gzip = \
+ cat $(real-prereqs) | gzip -n -f -9 > $@
+
# Figure out what we need to build from the various variables
# ===========================================================================
diff --git a/xen/common/Makefile b/xen/common/Makefile
index 46049eac35..f45f19c391 100644
--- a/xen/common/Makefile
+++ b/xen/common/Makefile
@@ -78,13 +78,13 @@ obj-$(CONFIG_NEEDS_LIBELF) += libelf/
obj-$(CONFIG_HAS_DEVICE_TREE) += libfdt/
CONF_FILE := $(if $(patsubst
/%,,$(KCONFIG_CONFIG)),$(objtree)/)$(KCONFIG_CONFIG)
-$(obj)/config.gz: $(CONF_FILE)
- gzip -n -c $< >$@
+$(obj)/config.gz: $(CONF_FILE) FORCE
+ $(call if_changed,gzip)
+
+targets += config.gz
$(obj)/config_data.o: $(obj)/config.gz
$(obj)/config_data.S: $(srctree)/tools/binfile FORCE
$(call if_changed,binfile,$(obj)/config.gz xen_config_data)
targets += config_data.S
-
-clean-files := config.gz
--
Anthony PERARD
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